EP 2681529 A4 20140827 - POROSITY MEASUREMENT
Title (en)
POROSITY MEASUREMENT
Title (de)
POROSITÄTSMESSUNG
Title (fr)
MESURE DE POROSITÉ
Publication
Application
Priority
- FI 20115209 A 20110302
- FI 2012050201 W 20120229
Abstract (en)
[origin: WO2012117162A1] The measuring device is an on-line measuring device comprising a pressure generator (102) and a sensor (104), by which is determined porosity of paper or board, constituting an object of measurement (1 16), by directing (1000) known suction effect to the paper or board and measuring (1002) low pressure produced by the suction effect for the determination of porosity.
IPC 8 full level
G01N 15/08 (2006.01); G01N 33/34 (2006.01)
CPC (source: EP FI US)
G01N 15/082 (2013.01 - US); G01N 15/0826 (2013.01 - EP FI US); G01N 15/088 (2013.01 - EP US); G01N 33/34 (2013.01 - EP US)
Citation (search report)
- [XI] EP 0770866 A1 19970502 - VALMET CORP [FI]
- [XI] US 4892621 A 19900109 - ESKELINEN PEKKA [FI]
- [A] GB 190411201 A 19050316 - BIRTWISLE JOHN
- [A] JP 2009290162 A 20091210 - UENO SEIKI KK
- See references of WO 2012117162A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
WO 2012117162 A1 20120907; CN 103403527 A 20131120; EP 2681529 A1 20140108; EP 2681529 A4 20140827; FI 124628 B 20141114; FI 20115209 A0 20110302; FI 20115209 A 20110826; US 2013327126 A1 20131212
DOCDB simple family (application)
FI 2012050201 W 20120229; CN 201280011290 A 20120229; EP 12751982 A 20120229; FI 20115209 A 20110302; US 201214000672 A 20120229